JPS6044453A - Apparatus for correcting meandering of travelling texture - Google Patents

Abstract

PURPOSE:To improve conformity to meandering correction while permitting high accuracy meandering correction by supporting one ends of a plurality of guide bars arranged around a rotatable cylindrical member on a pivotable ring-like guide plate by two male screw members. CONSTITUTION:A cylindrical member 4 is rotatably fitted in a shaft 1 fixed between brackets 2, 2 through bearings 3, and slide bearings 5 are radially arranged at a plurality of the outer peripheral positions of the cylindrical member 4. Guide bars 6 are axially slidably mounted on the respective bearings 5. To one ends of the guide bars 6 are attached rotary rollers 8 respectively through brackets 7, and the respective rotary rollers 8 is engageably inserted into a gap in a ring-like guide plate 9 consisting of two rings. The ring-like guide plate 9 is pivotably adjusted by female screw members 14a, 14b mounted thereon and screwed onto male screws 13a, 13b. The rotation of the respective male screws 13a, 13b is controlled by a drive means A on the basis of the output of a detector 20 for detecting the ear end of a travelling texture F.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an improvement of a meandering correction device for running fabric, and is suitable for running long fabrics such as woven fabrics, knitted fabrics, films, and paper, and for various types of processing. In the technical field of processing, it is used to correct the left and right meandering of the fabric and guide it to the desired correct running path.

(Prior Art) As a meandering correction device for running fabric, a wide variety of devices have been proposed and implemented in the past.
The device described in Japanese Patent No. +598/N is known.

To give an overview of this device, a plurality of guide bars are arranged radially around a cylindrical member rotatably supported on a shaft, and each guide bar is slidable in the axial direction. Placket one end of the
Supported by two ring-shaped guide plates via rotating rollers, etc.
In an apparatus configured to correct meandering of running material by a sliding action of each guide bar in the axial direction due to the tilting of the guide plate and a rotation action of each guide bar about a shaft, One point on the outer periphery is pivotally supported by a support member, and an actuating device (tit) consisting of a cylinder is fully connected to the end of the guide plate opposite to the pivot supporting position, and the actuating device is moved forward and backward.

The guide plate is configured to tilt around the pivot support position as a pivot point.

However, in the case of this device, since the tilting fulcrum of the guide plate is specified, there is a drawback that it is subject to the following restrictions when correcting the meandering of the running material.

That is, the meandering correction device of the type configured as described above is
It has both the quick response to immediately correct the meandering fabric by returning it to its normal position, and the sustainability to maintain the corrective action in a fixed direction. However, if the pivot point of the guide plate is specified as in the conventional device described above, it is difficult to adjust the responsiveness and sustainability. It is impossible to correct the meandering of the fabric and it is difficult to avoid roughness, and there is a serious drawback that it is difficult to perform accurate sieving correction operations. If the tilting fulcrum is set at a far position, the device becomes bulky due to the support position, resulting in a problem that requires a large facility space.

(Object of the present invention) The present invention provides a meandering correction device for a running material of the type described above, in which the tilting fulcrum of the ring-shaped guide plate can be changed almost infinitely in near and far directions without specifying the tilting fulcrum of the ring-shaped guide plate. The device can be configured to be configurable so that the responsiveness and durability of the meander correction can be easily and reliably increased or decreased as desired.

To provide a meandering correction device that can achieve highly accurate meandering correction, and has the advantage of being compactly installed without causing problems such as spacing even if a virtual tilting fulcrum is set at a far position. The purpose is to

(Structure of the present invention) The meandering correction device for running fabric according to the present invention includes a plurality of guide bars that are radially arranged around a cylindrical member that is rotatably supported on a shaft, and that are slidable in the axial direction. , one end of each guide bar is supported by a ring-shaped guide plate via a rotating roller or the like, and each guide bar has a sliding action in the axial direction due to the tilting of the guide plate, and each guide bar has a shaft center axis. In the device configured to correct the meandering of the running material due to the rotational action of the ring-shaped guide plate, female screw members are pivotally attached to two side surfaces of the ring-shaped guide plate via bosses, and male screw members are respectively attached to both male screw members. At the same time as inserting the screw,
Appropriate rotation mechanisms are attached to both male threaded members separately, and the rotating speed of both male threaded members is changed depending on the rotational speed difference between the two male threaded members, thereby changing the moving distance of both male threaded members, thereby forming a link-like guide plate. It is characterized by being constructed so that it can be moved and tilted along the axial direction.

1. In order to change the rotational speed of both male threaded members, timing pulleys with different diameter lengths are installed at the ends of both male threaded members, respectively, and a common motor with another timing 7° pulley is used to drive the timing pulleys. It is configured to rotate both pulleys with different diameter lengths through the Rotation speed 1y
It is characterized by being configured to change.

(Operation based on the configuration of the present invention) The meandering correction device for running fabric configured as described above is capable of rotating both male and female threaded members by changing the rotational speed of the valley rotation mechanism attached to each of the male and female threaded members. The both male screw members into which the screw members are screwed are moved to the right or to the left, thus moving the ring-shaped guide plate to the right or to the left along the axial direction. At this time, due to the difference in rotational speed between the two male threaded parts, the female threaded member on the side of the male threaded part, which has a faster rotational speed, has a greater travel distance than the other female threaded part. Tilt the guide board. That is, the guide plate is moved and tilted to the right or left along the axial direction of the shaft, and each guide bar previously supported by the guide plate is slid along the axial direction to the right or left. , its sliding action and the rotational action of each guide bar about the shaft as the central axis ((Thus, the running material is guided in the direction of tilting of the guide plate to perform the necessary meandering correction.
By increasing or decreasing the rotational speed difference between both male threaded members,
This is to increase or decrease the responsiveness and durability of the device for meandering correction.

(Example of the present invention) Embodiments of the present invention will be described below with reference to the accompanying drawings.

In FIGS. 1 to 5, ``■'' is a shaft fixed to the placket 2.2, on which a cylindrical member 4 is rotatably fitted via a rotary bearing 3, and on the outer periphery of the cylindrical member. Slide bearings 5 are arranged radially at a plurality of locations, and each guide bar 6 is radially disposed on each slide bearing so as to be slidable in the axial direction. Still, a rotating roller 8 is attached to one end of each guide bar 6 via a placket 7.
are mounted respectively, and the rotating rollers 8 are circumferentially inserted and arranged within the spacing of the ring-shaped guide plate 9, which is constructed by joining two rings with a required spacing between them. One end of each guide bar 6 is supported by a ring-shaped guide plate 9, and each bar is configured to be rotatable with the cylindrical member 4 through each rotating roller 8 about the shaft 1 as a central axis.

On the outer surface of the ring-shaped guide plate 9, bosses IOa and IOb are fixedly installed at two locations on the same diameter line, and the bosses IOa and IOb are fixed to the outside surface of the ring-shaped guide plate 9, and the bosses IOa and IOb are fixed to the ring-shaped guide plate 9 in the axial direction. Two male screws Ml (Paulownia' 13
a, 13bK screwed female screw members 14a, 14b are connected to the boss lea, through pins 15a, 15bk.
In addition, in this embodiment, at least one of the boss portions pivotally connected by pins 15a and 15b pivots the ring-shaped guide plate 9 around the virtual rotation fulcrum P. E1 double threaded part H' is necessary to enable circular arc movement as
It is configured to perform both rotation and sliding operations on at least one of 14a and t4b. (See Figures 2 and 5).

Further, two timing pulleys 16a, 1 with different outer diameter lengths are provided at the outer shaft ends of the male threaded part sets 13a, 13b.
In this embodiment, the diameter of the timing pulley 16a on the male threaded member 13a side is increased, and both timing pulleys 16a, 16b'i,
It is configured to be rotationally driven via a timing belt 17 by a servo motor 19 equipped with another timing pulley 18 and capable of forward and reverse rotation. This servo motor 19 is configured to be rotated under the control of an amplifier 21 in response to a signal from a detector 20 that detects the edge position of the running material by known means, and when the servo motor 19 rotates, two Although the male threaded members 13a and 13b rotate together, the rotation speeds are different because the diameter lengths of the pulleys 16a and 16b are different. In this embodiment, the male threaded member 13b rotates faster, and therefore the female threaded member 14b rotates faster. is moved more than the female threaded portion II' 14a, and the ring-shaped guide plate 9 is moved to the right or left and tilted to the right or left in the directions shown in FIGS. 2 and 5.

As described above, when the guide plate 9 moves and tilts in response to the signal from the detector 20, each guide bar 6, which is arranged radially around the cylindrical member 4 and has a roll shape, slides in the axial direction and travels. Since the fabric rotates in a tangled manner due to the running action of the fabric, the running fabric that is in a meandering state is moved laterally by each sliding guide bar 6 and guided to the normal position, thereby correcting the meandering in some places. In.

22id ring-shaped guide plate 9 tilting limit shaft, F
Q Indicates running fabric.

FIG. 6 shows a male screw member 13a, 1. This shows another means of the rotation mechanism of Th, in which the outer diameter lengths are different in order to obtain a difference in the rotational speed of both male threaded parts (without using a timing pulley). Forward/reverse rotation motor 23
a, 231) so that they can be rotated separately at different speeds.

(Effects of the present invention) The present invention provides a cylindrical portion rotatably supported on a shaft (
A plurality of guide bars are arranged radially around A so as to be slidable in the axial direction, and one end of each guide bar is supported by a ring-shaped guide plate via a rotating roller or the like,
In the apparatus configured to correct the meandering of the running material by the sliding action of each guide bar in the axial direction due to the tilting of the guide plate, and the rotation action of each guide bar about the center axis of the ring-shaped guide plate. Since the structure is configured such that the tilting of the guide plate is performed by the rotational speed difference between the rotational mechanisms of the two male threaded members connected to the guide plate via the female threaded member or the like, the rotational speed difference of the rotational mechanisms can be increased or decreased. As a result, the tilting fulcrum (virtual fulcrum) of the guide plate can be changed almost infinitely near and far, so the quick response and sustainability for meandering correction can be easily and reliably adjusted by relatively increasing or decreasing as desired. Therefore, it has a great effect of achieving highly accurate meandering correction, and even if the virtual tilting fulcrum of the guide plate is set at a far position, it can be installed compactly without causing any space problems. It has the following effects.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a schematic front view of the entire device, Fig. 2 is an enlarged sectional view of the main part, and Fig. 3 is a side view of a part of the swimming pulley in Fig. 2. , FIG. 4 is a cross-sectional view taken along the line A-A in FIG. 2 with part γD91 omitted, FIG. 5 is an explanatory diagram of the operation of the ring-shaped guide plate, and FIG. 6 is the entire device showing the other side of the rotating mechanism of the male threaded member. FIG. 1 Shaft, 4 ・Cylindrical member, 6 ・Guide bar, 8
Rotating roller, 9...Ring guide plate, IOa/IOb...
・Boss, 13a-13b ・Male thread member, 141・1
4b-Female screw part M', 16a 46b - Timing pulley. 17...Timing belt, ]8...Timing pulley, 19.Motor, 23a, 23b...Motor. Patent applicant Toyo Kikai Co., Ltd. Figure 3 16b Figure 4

Claims (3)

[Claims] (1) A plurality of guide bars are arranged radially around a cylindrical member that is rotatably supported on a shaft, and are slidable in the axial direction, and one end of each guide bar is connected via a rotating roller or the like. The guide bar is supported by a ring-shaped guide plate, and the meandering of the running material is corrected by the sliding action of each guide bar in the axial direction due to the tilting of the guide plate, and the rotation action of each guide bar about the shaft as the central axis. In this device, male threaded members are pivotally attached to two side surfaces of the ring-shaped guide plate via bosses, and the male threaded members are screwed into both male threaded members, respectively. Appropriate rotation mechanisms are attached to both male threaded members separately, and a structure is constructed so that the (b) rotational speed of both male threaded members is changed by the rotational speed difference of the cylindrical rotation mechanism, thereby changing the moving distance of both male threaded members. - A meandering correction device for running fabric, characterized in that the ring-shaped guide plate is configured to be moved and tilted along the axial direction. (2) A plurality of guide bars are arranged radially around the cylindrical part that is rotatably supported on the shaft, and can be slid in the axial direction, and one end of each guide bar is attached to a rotating roller, etc. The meandering of the running material is corrected by the sliding action of each guide bar in the axial direction due to the tilting of the guide plate, and the rotation action of each guide bar with the shaft as the center and axis. In the device configured as above, female thread members are pivotally attached to two side surfaces of the ring-shaped guide plate via bosses, male thread members are screwed into both male thread members, respectively, and male thread members are screwed into both male thread members at the ends thereof. By installing Quimink pulleys with different diameter lengths, and rotating a motor equipped with another timing pulley, the male screw part on the pulley side with a smaller diameter is connected to the male thread on the pulley side with a larger diameter via the Quimink held. A meandering correction device for running material, characterized in that it is configured to rotate faster than a threaded member, change the moving distance of both male threaded members, and move and tilt a ring-shaped guide plate along an axial direction. (3) A plurality of guide bars are arranged radially around a cylindrical member that is rotatably supported on the shaft, and are slidable in the axial direction. The guide bar is supported by a ring-shaped guide plate, and the meandering of the running material is corrected by the sliding action of each guide bar in the axial direction due to the tilting of the guide plate, and the rotation action of each guide bar about the shaft as the central axis. In this device, the female threaded portions are pivotally attached to two side surfaces of the ring-shaped guide plate via bosses, the male threaded portions are screwed into both male threaded members, and motors are attached to both M and threaded portion sides. Attach them separately, and emit to change the rotational speed of both male threaded members depending on the rotational speed difference of both Mogoo and change the moving distance of both male threaded parts, thereby moving the ring-shaped guide plate along the axial direction. A meandering correction device for running fabric, characterized in that it is configured to tilt.